(a) and (b) are incorrect because of their poor parallelism. in this "or" construction, the first half is "do not have", a tensed verb. therefore, the second half of the construction must also contain a tensed verb.
除非前面有neither，the schools neither have, nor are likely to have, ...才是正确的并列
如果用or的话，就变成了do not have or do not likely to have，意思错误
扫描二维码，直接登录
除非前面有neither，the schools neither have, nor are likely to have, ...才是正确的并列
如果用or的话，就变成了do not have or do not likely to have，意思错误
是的。
请问老师如果有选项是Nor are，能选吗？登录 或 注册 后可以参加讨论
are they省略掉的话，nor（do）likely to have，不对吧？登录 或 注册 后可以参加讨论
C语义错误，many schools do not have, or are likely to have，许多学校不会有，可能会有？登录 或 注册 后可以参加讨论